AutoCodes – Audi – P1117 Audi

P1117 Audi Code - HO2S Sensor Heater Circuit Short To Ground Bank 1 Sensor 2

Quick Answer

P1117 Audi indicates HO2S Sensor Heater Circuit Short To Ground Bank 1 Sensor 2. Common causes include Faulty HO2 Sensor Bank 1 Sensor 2, HO2 Sensor Bank 1 Sensor 2 harness is open or shorted, HO2 Sensor Bank 1 Sensor 2 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1117 Audi indicates HO2S Sensor Heater Circuit Short To Ground Bank 1 Sensor 2.
Common causes: Common causes include Faulty HO2 Sensor Bank 1 Sensor 2, HO2 Sensor Bank 1 Sensor 2 harness is open or shorted, HO2 Sensor Bank 1 Sensor 2 circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 8,311

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

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Table of contents Created and updated by William Orellana on Apr 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1117 Audi Description

OBDII Code P1117 Audi - HO2S Sensor Heater Circuit Short To Ground Bank 1 Sensor 2 - AutoCodes.com — P1117 Audi Code - HO2S Sensor Heater Circuit Short To Ground Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P1117 Audi?

Faulty HO2 Sensor Bank 1 Sensor 2
HO2 Sensor Bank 1 Sensor 2 harness is open or shorted
HO2 Sensor Bank 1 Sensor 2 circuit poor electrical connection

How to Fix the DTC P1117 Audi?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1117 Audi code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1117 Audi Code

1. What does the OBDII code P1117 mean for an Audi?

P1117 indicates a problem with the Heater Circuit of the Oxygen Sensor (HO2S) for Bank 1 Sensor 2, specifically a short to ground.

2. What are the common symptoms of the P1117 code in an Audi?

Symptoms include the check engine light turning on, reduced fuel efficiency, failed emissions tests, and possible engine performance issues.

3. What causes the P1117 code to appear in an Audi?

Common causes include a damaged oxygen sensor, a shorted or frayed wiring harness, a faulty sensor connector, or an issue with the engine control module (ECM).

4. Which oxygen sensor does the P1117 code refer to?

P1117 refers to the downstream oxygen sensor (Bank 1 Sensor 2), which is located after the catalytic converter on the side of the engine with cylinder 1.

5. Can I drive my Audi with the P1117 code active?

While the car may remain drivable, it is not recommended as it can lead to poor fuel economy, increased emissions, and potential damage to other components.

6. How can I diagnose the P1117 OBDII code in my Audi?

Start by checking the wiring and connectors for damage, testing the oxygen sensor heater circuit for continuity, and inspecting the ECM for faults.

7. How do I fix the P1117 code on my Audi?

Repairs may involve replacing the oxygen sensor, repairing damaged wiring or connectors, or addressing faults in the ECM.

8. How much does it cost to repair the P1117 code in an Audi?

Repair costs can vary but typically range from $150 to $400, depending on whether just the sensor or additional wiring repairs are needed.

9. Can a faulty oxygen sensor cause other issues in my Audi?

Yes, a malfunctioning oxygen sensor can lead to poor engine performance, increased emissions, and potential damage to the catalytic converter over time.

10. How can I prevent the P1117 code from occurring in the future?

Regular maintenance, inspecting the oxygen sensors and wiring during servicing, and addressing any electrical issues promptly can help prevent this code.